forked from Dniel97/segatools
bc297b2480
Going to add some ALLS stuff to libplatform and the ALLS hardware does not contain an AMEX board.
91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
#include <windows.h>
|
|
|
|
#include <assert.h>
|
|
#include <string.h>
|
|
|
|
#include "util/dprintf.h"
|
|
|
|
#include "hook/iohook.h"
|
|
|
|
#include "platform/hwmon.h"
|
|
|
|
enum {
|
|
HWMON_IOCTL_READ_CPU_TEMP = 0x80006000,
|
|
};
|
|
|
|
static HRESULT hwmon_handle_irp(struct irp *irp);
|
|
static HRESULT hwmon_handle_open(struct irp *irp);
|
|
static HRESULT hwmon_handle_close(struct irp *irp);
|
|
static HRESULT hwmon_handle_ioctl(struct irp *irp);
|
|
|
|
static HRESULT hwmon_ioctl_read_cpu_temp(struct irp *irp);
|
|
|
|
static HANDLE hwmon_fd;
|
|
|
|
void hwmon_hook_init(void)
|
|
{
|
|
hwmon_fd = iohook_open_dummy_fd();
|
|
iohook_push_handler(hwmon_handle_irp);
|
|
}
|
|
|
|
static HRESULT hwmon_handle_irp(struct irp *irp)
|
|
{
|
|
assert(irp != NULL);
|
|
|
|
if (irp->op != IRP_OP_OPEN && irp->fd != hwmon_fd) {
|
|
return iohook_invoke_next(irp);
|
|
}
|
|
|
|
switch (irp->op) {
|
|
case IRP_OP_OPEN: return hwmon_handle_open(irp);
|
|
case IRP_OP_CLOSE: return hwmon_handle_close(irp);
|
|
case IRP_OP_IOCTL: return hwmon_handle_ioctl(irp);
|
|
default: return HRESULT_FROM_WIN32(ERROR_INVALID_FUNCTION);
|
|
}
|
|
}
|
|
|
|
static HRESULT hwmon_handle_open(struct irp *irp)
|
|
{
|
|
if (wcscmp(irp->open_filename, L"\\\\.\\sghwmonitor") != 0) {
|
|
return iohook_invoke_next(irp);
|
|
}
|
|
|
|
dprintf("Hwmon: Opened device\n");
|
|
irp->fd = hwmon_fd;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT hwmon_handle_close(struct irp *irp)
|
|
{
|
|
dprintf("Hwmon: Closed device\n");
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT hwmon_handle_ioctl(struct irp *irp)
|
|
{
|
|
switch (irp->ioctl) {
|
|
case HWMON_IOCTL_READ_CPU_TEMP:
|
|
return hwmon_ioctl_read_cpu_temp(irp);
|
|
|
|
default:
|
|
dprintf("Hwmon: Unknown ioctl %08x, write %i read %i\n",
|
|
irp->ioctl,
|
|
(int) irp->write.nbytes,
|
|
(int) irp->read.nbytes);
|
|
|
|
return HRESULT_FROM_WIN32(ERROR_INVALID_FUNCTION);
|
|
}
|
|
}
|
|
|
|
static HRESULT hwmon_ioctl_read_cpu_temp(struct irp *irp)
|
|
{
|
|
/* Assuming this is Celsius. It also seems to be biased by -23 (based on the
|
|
caller code) despite being a 32-bit int. */
|
|
|
|
dprintf("Hwmon: Read CPU temperature\n");
|
|
|
|
return iobuf_write_le32(&irp->read, 52);
|
|
}
|